Direct flights to Seoul | Cheapflights

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Cheapest

Best

Last-minute

One-way

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 24 August 2026.

Mon 2/1122:25 -

Nonstop5h 55m

Sat 7/1117:05 -

Nonstop6h 20m

Deal found 19/8฿8,714

Mon 7/900:05 -

Nonstop5h 35m

Mon 26/1012:10 -

Nonstop5h 50m

Deal found 24/8฿8,746

Thu 10/902:25 -

Nonstop5h 35m

Wed 28/1012:10 -

Nonstop5h 50m

Deal found 24/8฿8,779

Sat 5/902:25 -

Nonstop5h 35m

Wed 28/1012:10 -

Nonstop5h 50m

Deal found 24/8฿8,812

Mon 14/900:05 -

Nonstop5h 35m

Sat 31/1019:30 -

Nonstop6h 20m

Deal found 24/8฿8,844

Wed 16/901:10 -

Nonstop5h 45m

Sun 20/920:05 -

Nonstop6h 05m

Deal found 23/8฿8,877

Tue 6/1000:05 -

Nonstop5h 35m

Mon 19/1012:10 -

Nonstop5h 50m

Deal found 24/8฿8,909

Tue 29/902:25 -

Nonstop5h 35m

Sat 3/1020:05 -

Nonstop6h 05m

Deal found 21/8฿8,942

Sat 3/1002:25 -

Nonstop5h 35m

Tue 20/1018:00 -

Nonstop6h 05m

Deal found 24/8฿8,975

Sun 13/901:10 -

Nonstop5h 45m

Sun 1/1119:30 -

Nonstop6h 20m

Deal found 24/8฿9,007

Fri 4/900:05 -

Nonstop5h 35m

Sun 22/1112:10 -

Nonstop5h 50m

Deal found 21/8฿9,040

Tue 15/902:25 -

Nonstop5h 35m

Sat 19/920:05 -

Nonstop6h 05m

Deal found 22/8฿9,073

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.

TH1-SEL

BKK-ICN

DMK-ICN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Sun 6/9

00:05-07:40

Nonstop5h 35m

Incheon Intl

Thu 10/9

18:00-22:05

Nonstop6h 05m

฿9,301

Fastest return journey

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 1/10

02:25-10:00

Nonstop5h 35m

Incheon Intl

Tue 6/10

12:10-16:00

Nonstop5h 50m

฿9,530

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Tue 2/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Sun 14/2

11:20-15:30

Nonstop6h 10m

฿9,888

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Mon 28/9

02:25-10:00

Nonstop5h 35m

Incheon Intl

Fri 2/10

12:10-16:00

Nonstop5h 50m

฿10,052

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Fri 2/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Wed 14/10

12:05-15:50

Nonstop5h 45m

฿10,215

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 30/9

01:10-08:55

Nonstop5h 45m

Incheon Intl

Sun 1/11

19:30-23:50

Nonstop6h 20m

฿10,280

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Mon 18/1

02:25-10:00

Nonstop5h 35m

Incheon Intl

Thu 28/1

12:10-16:00

Nonstop5h 50m

฿11,129

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Mon 15/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Mon 22/2

11:20-15:30

Nonstop6h 10m

฿11,194

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Thu 7/1

02:30-10:05

Nonstop5h 35m

Incheon Intl

Mon 18/1

11:20-15:30

Nonstop6h 10m

฿11,194

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 23/9

02:25-10:00

Nonstop5h 35m

Incheon Intl

Thu 1/10

12:10-16:00

Nonstop5h 50m

฿11,259

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 42 resultsSorted by cheapest first

1

2

3

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5

Reviews of airlines flying non-stop to Seoul

Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

8.4

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

AIR PREMIA

8.1

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

7.9

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Thai Vietjet Air

6.6

Okay

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

How much are direct flights to Seoul?
On average, a one-way direct flight to Seoul will cost users approximately ฿12,723. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿25,843.
Which airlines fly direct to Seoul?
At the moment, Thai AirAsia X, Thai Vietjet Air, Korean Air, Thai Airways, AIR PREMIA, T'way Air, Asiana Airlines, Eastar Jet, Thai Lion Air, Jeju Air offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.
What is the best time of year to fly direct to Seoul?
If you're seeking the lowest price on a direct flight to Seoul, February is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.
What is the most popular direct flight origin to Seoul?
Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿24,745.

See more FAQs

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